I was being a bit lazy so I decided to buy a track suit jacket from American Apparel. The green color isn't accurate, but I thought it looked nice anyway xD. I used an off white colored bias tape cut them in half and sewed them, and (also being lazy) I then glued them on with fabric glue. I used white cotton fabric for the white pieces. It's not exactly finished since I need to add on the white part on the bottom edge. Headphones are from E-bay, and I plan on editing them so it looks more like Miku's.